C8051F066-GQ Silicon Laboratories Inc, C8051F066-GQ Datasheet - Page 172

• Manufacturer Part Number: C8051F066-GQ
• Description: MCU 8-Bit C8051F06x 8051 CISC 32KB Flash 3.3V 100-Pin TQFP
• Manufacturer: Silicon Laboratories Inc
• Series: C8051F06xr

Specifications of C8051F066-GQ

• Package: 100TQFP
• Device Core: 8051
• Family Name: C8051F06x
• Maximum Speed: 25 MHz
• Operating Supply Voltage: 3.3 V
• Data Bus Width: 8 Bit
• Number Of Programmable I/os: 59
• Interface Type: I2C/SMBus/SPI/UART
• On-chip Adc: 2-chx16-bit
• Number Of Timers: 5
• Ram Size: 4.25 KB
• Program Memory Size: 32 KB
• Program Memory Type: Flash
• Operating Temperature: -40 to 85 °C
• Core Processor: 8051
• Core Size: 8-Bit
• Speed: 25MHz
• Connectivity: EBI/EMI, SMBus (2-Wire/I²C), SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 59
• Voltage - Supply (vcc/vdd): 2.7 V ~ 3.6 V
• Data Converters: A/D 2x16b
• Oscillator Type: Internal
• Package / Case: 100-TQFP, 100-VQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 336-1221

C8051F060/1/2/3/4/5/6/7
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172
Bits 7-0: OSCICL: Internal Oscillator Calibration Register
Bit7:
Bit6:
Bits5-2:
Bits1-0:
IOSCEN
R/W
R/W
Bit7
Bit7
This register calibrates the internal oscillator period. The reset value for OSCICL defines the
internal oscillator base frequency. The reset value is factory calibrated to generate an inter-
nal oscillator frequency of 24.5 MHz.
IOSCEN: Internal Oscillator Enable Bit
0: Internal Oscillator Disabled
1: Internal Oscillator Enabled
IFRDY: Internal Oscillator Frequency Ready Flag
0: Internal Oscillator not running at programmed frequency.
1: Internal Oscillator running at programmed frequency.
Reserved.
IFCN1-0: Internal Oscillator Frequency Control Bits
00: SYSCLK derived from Internal Oscillator divided by 8.
01: SYSCLK derived from Internal Oscillator divided by 4.
10: SYSCLK derived from Internal Oscillator divided by 2.
11: SYSCLK derived from Internal Oscillator divided by 1.
IFRDY
R/W
Bit6
Bit6
R
Figure 15.2. OSCICL: Internal Oscillator Calibration Register
Figure 15.3. OSCICN: Internal Oscillator Control Register
R/W
R/W
Bit5
Bit5
-
R/W
Bit4
Bit4
R
-
Rev. 1.2
R/W
R/W
Bit3
Bit3
-
R/W
R/W
Bit2
Bit2
-
IFCN1
R/W
R/W
Bit1
Bit1
SFR Address:
SFR Address:
SFR Page:
SFR Page:
IFCN0
R/W
R/W
Bit0
Bit0
0x8B
F
0x8A
F
Reset Value
Reset Value
11000000
Variable